2564513039 has 4 divisors (see below), whose sum is σ = 2797650600. Its totient is φ = 2331375480.

The previous prime is 2564513009. The next prime is 2564513051. The reversal of 2564513039 is 9303154652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2564513039 - 2²⁴ = 2547735823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2564512993 and 2564513011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564513009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116568764 + ... + 116568785.

It is an arithmetic number, because the mean of its divisors is an integer number (699412650).

Almost surely, 2^2564513039 is an apocalyptic number.

2564513039 is a deficient number, since it is larger than the sum of its proper divisors (233137561).

2564513039 is a wasteful number, since it uses less digits than its factorization.

2564513039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233137560.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 2564513039 is about 50641.0213068417. The cubic root of 2564513039 is about 1368.7841591831.

The spelling of 2564513039 in words is "two billion, five hundred sixty-four million, five hundred thirteen thousand, thirty-nine".